Fluid meter



June 112, 1923. 11,458,3 3

c. J. BASSLER FLUID METER Fild June 8, 1921 Patented June 12, 1223.

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CARLOS J. BASSLER, 0F PORTLAND, OREGON, ASSIGNOR TO AMERICAN LIQUID METER COMPANY, OF PORTLAND, OREGON, A CORPORATION OF WASHINGTON.

FLUID METER.

Application filed June 8,

To all whom it mag comma? Be it known that l, CAnLos J. Bassnnn, a citizen of the United States of America, and resident of the city of Portland, in the county of Multnomah, State of Oregon, have invented certain new and useful Improve ments in Fluid Meters, of which the followin is a specification.

y invention relates to an improvement in fluid meters, it is particularly intended as an improvement upon the meter shown in my Patent No. 1,355,208, and is capable of all the uses and variations described in connection with this meter.

An important object of the present inven tion is to form a more perfect meter of the type shown in my patent above referred to, in that it has less tendency to cock or stick, and in that it operates more smoothly and exactly, and is practically noiseless in operation.v

Another object is to provide means for lessening the strain upon all parts of the meter, due to the rapid reversal and exact positioning of parts requisite for exact measurement.

Another object is to provide a fluid meter employing onl either end of t e measuring cylinder.

My invention comprises those novel parts and combinations thereof which are shown in the accompanying drawings, described in the specification, and particularly defined by the claims terminating the same.

lln the accompanying drawing, which shows an axial section through a meter,I have shown my invention inthe form of construction which is now preferred by me.

As in general my present device resembles that shown in my patent and in the application referred to above, it will not be necessary to explain its construction in great detail. The meter is of the positively-acting type, in which a piston 4 is reciprocable within a cylinder 1. This cylinderis closed by the heads 10; in each of which are mount- .ed the bushings or seats 12 for the tubular,

axiall -reciprocable inlet and. outlet valves 2. In et passages 14 and outlet passages 15 in the c linder and heads, communicate respective y with ports 16 and 17 in the bushing 12. The valve 2 preferably is provided with a single port 21, in its sides, which is adapted to communicate at the proper time with the port 16 or 17, as the case may be.

a single control valve at.

1921. Serial No. 476,057.

the cylinder and in effect forming part of e the cylinder head 10,in position to receive the outer ends of the tubular valve 2, Ttherefor form annular grooves 18, of slightly greater width than the thickness of the valve walls. These grooves form dashpots for the valves, and eliminate pounding and wear thereupon. It is very desirable that stops .1 be provided to accurately limit the move ment of the valves, and to cause their ports to register exactly, but it is equally desirable that pounding should be eliminated.

'Other forms of cushioning devices may be employed for other types of valves, that described being most suitable for my preferred type of valve.

ll employ a suitable power storage mechanism to actuate the valve, this being energized by the piston in its travel, and tripped when the piston has reached the predetermined limit of its travel in each direction,

to thereby reverse the position of the valves and the motion of the piston. The particular form of power storage mechanism forms no part of this invention. It consists of the springs 41 surrounding the rod at each side of the piston 4, which springs rest at one end upon the shoulders 42, secured upon the rod 80, or abutting against the inner ends of the valves. The outside of the member having thereon the shoulder 42 forms a shoulder 43, against which a cooperating shoulder 50 carried by a pivoted dog 5 normally lies to prevent outward movement of the spring 41 and shoulder 42 under pressure. Beveled surfaces 44 are provided near the hub of the piston .4, which engage the trips 53, which may be of any suitable or desired construction, to release the power storagemechanism and to reverse the valves. The detent or dog 5 is in all respects similar to that shown in my patent and application referred to above, and need not be described here in detail.

The cushioning device, or dashpot, retarding the final portion of the valve stroke, does not prevent rapid reversal of the parts,

hot it eliminates the .pfllllull'z'f the noise, end the strein on all ports of the mechanism, while yet permitting eccurete positioning of the valves. The single velve construction described is chee to rnehe end operates satisfactorily. Al movements of the valves occur in an exiel direction end upon the axis of the meter, hence cocg or-stickin of the velves is reduced to e nimnm. t is to be understood thet more reversals of the valve and hushin ports are essentially the some as the invention descrihe'd,end are comprised in the claims following hereafter.

What li cleim es-my invention is: t

l. in e fluid meter of the positively-noting type, mechanism which is reversible in action for controlling the inlet to and outlet from seid meter, and-means for cushioning said reversible mechanism et-the ends of its stroke comprising e member having e recess of the shape of the edjoining end of the reversible mechanism, and slightly lerger then this end.

2; lln n dnid meter of the positively-acting type, mechenismwhich is reversible in ection including tnhuler 'velves controlling the inlet to and outlet from said meter, said velvcs hein axially reciprocehle, and e cop covermg 1 onterends of each of said velves, end

positively liiting the stroke thereof, said cap having on ennuler groove therein positioned to receive the end of its vnlve, end of slightly greater width then the thickness of the wells thereof.

3. ln efiuid meter, in combination, e cylinder hevi inlet end outlet passages communicetin with each end thereof, e piston inder he municetm reciprocal) e in said cylinder, at pair of tubureciprocal e in said cylinder, two tubular combined inlet end-outlet valves one in each end of the cylinder and each having a port in its side and being vehle to control the respective pesseges in its respective end of the cylindenend means at each end of the cylinder and operable by movement of the piston for limiting movement thereofin its respective direction.

j d. In some meter, in combination, e cyle; inlet and outlet paseges com-- with each end thereof, it piston lnr combined inlet end outlet valves one in menses each end of the cylinder and eachhnving at single port inits side, said inlet end outlet passages being spaced exielly oi the valve, and the valve being reciprocehle to register with either of seidyeges, and means at each end of the cy inder end operable lay movement of the piston for limiting movement thereof in its respective direction.

5. ln e fluid meter, in comhinetion, e

cylinder heving inlet and outlet pesseges commnniceting with each end thereof, "it piston rec procnhlc in said cylinden'e comblood inlet and outlet valve in each end of I the cylinder and eech having a single port in its side, 'seidj inlet'and outlet pessoges. 'heing spaced axially Oil the valve, and the velve heing reciprocehle to register with either of seid passages, meens at each end of the cylinder and operable by movement. 7

inder heving inlet and outlet passages communicating with ports in each end thereof, e piston 'reciprocehle in .seid cylinder, two

tnhuler inlet end outlet valves, said valves positioned-at on opposite end of the cyl-' index, endeech hevingn port in its sides end axially reciproceble to control the respective ports in its respective end of the cylinder, the cylinder heed having therein it stop to limit the travel of each velvennd having an annular; groove positioned to receive the end of catch valve and forming a inder releasable by continued travel of said piston. v

Signed at Portland, Multnomah County, Ureg'on, this 31st day of May, 1921.

clnros rinlssnnn.

6, ln or hold meter, in combination, n cyldash-pot therefor, e, rod penetrating the pie ton and connecting the valves at opposite 

